Backwards release ski binding

ABSTRACT

A sliding plate supports a heel (or toe or both) binding member on a ski. By depressing a remote switch the skier activates a linear actuator on the ski, thereby releasing a latch which allows a stored energy source to force a rear lock arm assembly to pivot upward. By the pivoting upward of the central pivot joint between the forward and rear lock arms, the overall length of the lock arm assembly is reduced. The sliding plate is attached to one end of the lock arm assembly. Thus, when the lock arm assembly is remotely actuated into the release mode, and shortened, the sliding plate pulls its ski binding member and increases the distance between the ski binding members, thereby releasing the boot from the ski binding members even in a backward fall. Other spring activated embodiments include a piston release assembly.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation in part claiming priority toprovisional U.S. application No. 60/224,312 filed Aug. 10, 2000,non-provisional application Ser. No. 09/748,970, filed Dec. 27, 2000which issued as U.S. Pat. No. ______ on ______.

FIELD OF THE INVENTION

The present invention relates to automatically via a ski poletransmitter releasing ski bindings by pushing a button on the ski polebindings or another transmitter button remote from the ski bindings.

BACKGROUND OF THE INVENTION

It is estimated that over 10,000 crippling knee injuries occur each skiseason in Colorado, U.S.A., alone. Extrapolating worldwide there mightbe over 50,000 knee injuries each ski season worldwide. Great advanceshave been made in downhill ski bindings to automatically release duringviolent forward falls. Several problems exist with the best downhill skibindings.

A serious problem is the slow, twisting backward fall. Most anteriorcrucia ligament (ACL) injuries occur with this type of fall. Expertskiers teaching children fall during a lesson and tear their ACL. Adamaged ACL can be treated with a modern, complex, and expensive surgerycalled a patella tendon graft replacement for the ACL. Other body partssuch as the hamstring tendon can also be used to replace the damagedACL.

Thus, two surgeries are required. First a body part such as the patellatendon is harvested. Second the damaged ACL is removed and replaced withthe harvested body part.

A good result requires six months of the replacement ACL to gainstrength and function like the original ACL. About a year's physicaltherapy is required to regain maximum use of the leg. Two wounds mustheel, without infection. Stiffness in the knee joint sometimes leads toloss of full range of motion. Atrophy of the leg muscles from the downtime of surgery adds stress to the already weakened knee. Additional ACLand related injuries do occur. An average cost of one procedure withtherapy is about $15,000.00.

All this misery can stem from one careless fall backwards while standingin the ski line. Following your child at 3 mph can lead to a slowbackwards fall and a crippling ACL injury. Nobody has invented a workingsolution to this one worst injury so frequently caused by a carelessmoment on downhill skis.

One new attempt to solve this problem is the Lange® boot rearward pivotankle segment of the boot. A pre-set backward force will release theankle segment of the boot rearward. However, the boot is still lockedinto the ski binding. Only twelve pounds of twisting torque on the footis required to tear an ACL. The Lange® boot solution does not addressthe release of rotational force on the knee. It addresses the release ofa rearward force by the boot on the back of the skier's calf. It isunknown if this system will reduce ACL injuries.

A large portion (perhaps half) of all ACL injuries occur at slow speedsfalling backwards. Therefore, a couple of seconds of reaction timeexists for a trained skier (either novice or expert) to push anemergency release button on his ski pole handle and totally eject fromhis skis. By the time the skier hits the ground, he's out of his skiswithout exerting any rotational torque to his knees. Properly trainedskiers using the present invention can reduce the risk of ACL injury bya large percent, perhaps even half. This could mean 25,000 fewerworldwide ACL injuries a year, and a much safer sport overall.

Other uses for this emergency release system (also called a bail out™system) include easy release for beginners so they can spend less timelearning to stand up, and more time skiing. Upside down skiers in a treehole can quickly release and quickly get out of a dangerous situation.

The basic principle of the present invention is to mount the heel and/ortoe release segment of a ski binding on a short track. Pushing therelease button energizes a stored force on the ski to move the heeland/or toe binding along the track to a position larger than the skiboot. The result is a size 10 boot in a size 12 binding. The skier isinstantly free of his skis.

To remount the skier resets his binding to the loaded and properly sizedposition, steps in, and skis as usual.

SUMMARY OF THE INVENTION

The main aspect of the present invention is to provide a track on a skibinding element, wherein a remote release button powers the ski bindingelement to move on the track to a position larger than the skier'sproper boot and binding locked position.

Another aspect of the present invention is to provide a transmitterbutton on a ski pole to activate the movement of the ski binding on thetrack.

Another aspect of the present invention is to provide a spring having anelectronically activated release mechanism on the ski to move thebinding element on the track.

Another aspect of the present invention is to provide a gas actuatedpiston on the ski to move the ski binding element on the track.

Another aspect of the present invention is to provide a mounting platewith a track to house a toe and heel element of a ski binding.

The preferred embodiment uses the stored energy of a spring in a housingmounted to the rear of a ski binding heel element. A radio signalactivated mechanism releases the spring which moves the ski binding heelelement back along a track to very rapidly release a skier from hisbinding.

All normal functions of a modern, forward release ski binding remainintact.

Initial prototypes prove the concept of building a track style releasemechanism which can use off the shelf ski bindings.

Future models of the track style release binding could be factory builtwith the initial ski binding.

A sliding plate supports a heel binding member on a ski. By depressing aremote switch the skier activates a linear actuator on the ski, therebyreleasing a latch which allows a stored energy source to pivot upward aforward and rear lock arm assembly. By the central pivot joint betweenthe forward and rear lock arms pivoting upward, the overall length ofthe lock arm assembly is reduced. The sliding plate is attached to oneend of the lock arm assembly. Thus, when the lock arm assembly isactuated into the release mode, and shortened, the sliding plate pullsits ski binding member and increases the distance between the skibinding members, thereby releasing the boot from the ski binding memberseven in a backward fall. Either a spring or gas piston assembly is usedas the stored energy source to pivot the lock arm assembly upward to therelease mode. Either a base plate supports all the elements of thesliding plate assembly, or a rail member is fastened directly to the skiupon which the sliding plate slides. This embodiment offers the leastweight added to the ski. The invention can be adapted for use on mostprior art downhill ski bindings. All the prior art release functions ofthe prior art step in release bindings are unchanged, but additionallythe skier can cock his system with a simple step onto the lock armassembly central pivot joint, and push a button on his pole to releaseeven in a slow backward fall.

Other aspects of this invention will appear from the followingdescription and appended claims, reference being made to theaccompanying drawings forming a part of this specification wherein likereference characters designate corresponding parts in the several views.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a right side plan view of a toe piece track releaseembodiment.

FIG. 2 is a partial cutaway view of the ski pole handle transmitter.

FIG. 3 is a cross sectional view taken along line 16-16 of FIG. 2.

FIG. 4 is a top perspective view of an alternate embodiment springrelease mechanism.

FIG. 5 is a left side plan view of the preferred embodiment.

FIG. 6 is a right side view of the preferred embodiment.

FIG. 7 is a top plan view of the preferred embodiment.

FIG. 8 is a bottom plan view of the preferred embodiment.

FIG. 9 is a rear plan view of the preferred embodiment.

FIG. 10 is a front plan view of the spring housing of the preferredembodiment.

FIG. 11 is a longitudinal sectional view of the spring housing(released) of the alternate embodiment taken along line 24-24 of FIG. 9.

FIG. 12 is a same view as FIG. 11 with the spring housing locked.

FIG. 13 is the same view as FIG. 4, but the binding housing has anoptional sound module, a chirper chip.

FIG. 14 (prior art) is a longitudinal sectional view of a Dynastar®floating heel plate ski.

FIG. 15 is a top perspective view of a spring release embodiment mountedon the ski shown in FIG. 14.

FIG. 16 is a top perspective view of a foot cocking emergency backwardrelease binding, the preferred embodiment, with the actuator cocked andready to ski.

FIG. 17 is the same view as FIG. 26 with the actuator released.

FIG. 18 is a top perspective view of a ski boat ready to ski in thecocked emergency backward release binding.

FIG. 19 is a rear perspective view of the ski boot ready to ski in thecocked emergency backward release binding.

FIG. 20 is a plan view of the skier's right side showing the ski bootready to ski in the cocked emergency backward release binding.

FIG. 21 is a close up perspective view of the release hinge assembly.

FIG. 22 is a skier's right side perspective view of the release hingeassembly with the trigger released.

FIG. 23 is a close up view of the trigger released as shown in FIG. 22.

FIG. 24 is a rear perspective close up view of the triggers released andthe hinge assembly in the released mode.

FIG. 25 is a close up view of the release assembly.

FIG. 26 is a skier's right side perspective view of the releasedemergency backward release binding showing the boot about to leave theski.

FIG. 27 is a skier's right side perspective view of the releasedemergency backward release binding showing the boot about to leave theski.

FIG. 28 is a skier's right side perspective view of a boot leaving thereleased emergency backward release binding.

FIG. 29 is a front perspective view of an alternate embodiment gaspiston version of the emergency backward release binding in the releasedmode.

FIG. 30 is the same view as FIG. 29 with the binding cocked.

FIG. 31 is a back perspective view of an alternate embodiment rack andpinion operated latch shown in the released mode.

FIG. 32 is a back perspective cut away view showing rack and pinion.

DETAILED DESCRIPTION OF THE DRAWINGS

Referring first to FIG. 1 a downhill ski 1 has a traditional forwardrelease binding system 2 comprising a toe release mechanism 3, a heelrelease mechanism 4 and a snow brake 5. When the skier 7 falls forwardhis boot 6 moves forward in direction F thereby releasing the bindingsystem 2 in a known manner. Upon release the snow brake 5 is thrustdownward. A movable track 11 supports the toe release mechanism 3. Anactuator arm 15 is connected to the track 11. Any one of a variety ofactuating mechanisms 12 respond to a remote signal to pull the track 11forward in direction FR, thereby releasing the boot 6 from the bindingsystem 2.

Referring next to FIGS. 2, 3 the ski pole 1500 has a handle 1501. Anactivator button 1502 is mounted on top of the handle for thumbactivation. Accidental discharges are prevented by safety switch 1503.The safety on S-ON position prevents the depressing of button 1502because segment 1509 inserts into a hole in button 1503, locking it. Inthe safety off position S-OFF the button 1502 is free to be activated.Normally the skier would move to the S-OFF position only during a skirun, not on the lift or during transport.

For release the button 1502 closes switch 1504. The battery 1505energizes the transmitter 1506 which sends signals 1508 to the skimounted receiver. Known multiple frequency methods are used to create alarge number of different frequencies in the field so as to prevent oneskier releasing another's bindings. Short range transmitters alsominimize this risk.

Referring next to FIG. 4 a ski boat 220 is shown stepping into a priorart downhill ski binding 221 which consists of a toe piece 222 and aheel piece 223. The dotted lines of the ski boot 220 show thetraditional downward movement of the ski boot 220 for locking into theski binding 221. The toe piece 222 is screwed into the ski 224 in aknown manner. The proper mounting distance between the toe piece andheel piece for boot 220 is shown as D₂ (distance for skiing).

The heel piece is mounted to the track 225 instead of the ski 224. Thetrack 225 can be a flat metal strip which slides under anchors 226 whichare fastened to the ski with screws (or bolts) 227. A notch 231 underthe anchors 226 receives the moveable track 225. When the spring releasemechanism 230 pulls the track rearward for a release, (shown by arrow)then the distance between the toe and heel pieces increases to D_(r)(distance for release).

The track 225 has a rear flange 228 which is connected to a shaft 229,which in turn is directly attached too a central piston (FIG. 12, 300).The spring release mechanism consists for a main housing 232, a receiver234, a solenoid 235, an electronics housing 2350, a plunger 236, atrigger 237, and a trigger support 238. The outer case for the abovecomponents has been removed.

In operation a skier cocks the spring release mechanism to the skiposition shown in FIG. 12. A lever 240 (such as the tip of a ski pole)is used to push the central piston crank arm 301 forward in direction F.This is accomplished by pulling the lever 240 rearward in direction Ragainst the fulcrum 241. The fulcrum is shown as a simple piece of metalextending rearward from the main housing 232. Now the traditional skibinding 221 functions in the traditional manner to release upon aforward force from the ski boot 220. However, as shown in FIGS. 2, 3 asignal 1508 (preferably a radio signal) is generated by a skier todemand the instant release of his bindings. The receiver 234 receivesthe signal 1508 and activates the solenoid 235 to extend the plunger236, thereby tripping the trigger 237. When the trigger 237 is tripped,the stored energy of the main spring (FIG. 11, 290) forces the centralpiston (FIG. 11, 3000) to the release position as shown in FIG. 11. Thetrack 225 is pulled rearward in direction R, and the distance betweenthe toe and heel pieces increases to distance D_(r). In prototype modethe difference between D_(r) and D_(s) is approximately one inch.

Referring next to FIGS. 5, 6 the external appearance of the trigger 237and its related functional parts is shown in plan view. The housing 232forms a base for the fulcrum 241. A slot 401 allows adjustment of therearward positioning of the fulcrum 241 with bolts 400. The solenoid ismounted inside the electronic housing 2350, said housing counteracts theelectronic force generated to move the plunger 236 rearward to triggerthe trigger 237. Bolts 2290 secure the shaft to the flange 228. Thetrigger 237 controls the movement of a sear (also called a locking pin)3000. A base 3015 forms a pivot for the sear 3000 to pivot from.

Referring next to FIGS. 7, 8, 9, 10 the solenoid and electroniccomponents have been removed to better show the mechanical parts. Thespring housing 232 has mounting holes 2600 on the bottom for attachmentto a ski. A bolt 2507 secures the trigger housing 238 to the springhousing 232. A bolt 2509 secures the sear base 3015 to the springhousing 232. Pin 3086 is a forward stop for the trigger 237. Pin 3005 isa pivot for the trigger 237. Pin 3006 is a stop for spring 3007 whichpushes the trigger 237 over the sear 3000 in the cocking operation. Pin3002 is a stop for spring 3003 which pushes the sear 3000 into thegroove 3012 which is located on the peripheral surface of central piston300.

The operation of the spring mechanism 230 is best seen in FIGS. 11, 12.The electronic parts have been removed. The technical challenge is tostore enough energy in the spring 290 to violently pull the track 225rearward on demand to release. The further challenge is to work with thelimited power available with a light weight battery pack on board theski. Too much added weight is not practical for downhill skis. Thesolution is a sear 3000 which has a locking corner 3011 which is forcedinto a locking engagement with a locking edge 3010 of the groove 3012 onthe outside of the central piston 300. The spring 3003 forces the seardownward in direction D when the spring is fully compressed. This lockedand ready to ski mode is shown in FIG. 25. The spring 3007 forces thetrigger 237 to lock the sear down.

When the skier pushes his release button to send a (preferably radio)signal to the receiver 234, the solenoid (or linear motor) is powered,thereby forcing plunger 236 against the trigger 237. The trigger 237 hasa pivot pin 3005, and so the plunger 236 moves the locking bottom edge3009 off the top of the sear, thereby allowing the spring 3003 to raisethe sear around its pivot pin 3001. As this occurs the locking surfaces3010, 3011 are released, and the spring 290 violently discharges itsstored energy and pulls the track 225 rearward. This rearward force doesovercome both the force of the weight of the skier as well as the forceof any ice and debris that has collected on the ski. The release mode isshown in FIG. 24. The cavity 3004 in the sear 3000 holds the spring3003.

Referring next to FIG. 13 the same system as FIG. 14 is shown. However,an optional sound module 1700 is mounted inside the outer case 230. Thesame battery 233 that powers the solenoid 235 can power the sound module1700 via wire 1702. Known sound modules include chirper chips used inbattery powered fire alarms. A skier who lost his ski in powder (worthperhaps $700.00) can now press his ski pole handle button (FIG. 2, 1502)to make a chirping sound to help locate his ski. The on-board 9 voltbattery could also power a mini speaker (not shown) to get more noise.

Referring next to FIG. 14 a prior art Dynastar® Autodrive™ ski 2700 isshown. The idea is to mount the binding onto a flexible plate 2702 inorder to get better flex from the ski which now is not compressed bybolts from the binding heel. A flexible cushion layer 2703 supports theheel segment of the metal mounting plate 2702. The toe segment of thebinding is supported by a filler layer 2701. As the ski arcs the heelsegment of the metal mounting plate floats with support post 2704 movingon cavity 2705.

FIG. 15 is the same as FIG. 14 except for the use of the ski 2700. Themetal mounting plate holds the entire binding and release assemblies. Tocock the spring in the release mechanism and spring main housing 232 theskier can kick or push the plunger 301 impacting a forward force on it.

Referring next to FIG. 16 the emergency backward release binding 1000has a base plate 1001 with holes 1015 to hold mounting screws to adownhill ski. Other ski types could use the binding 1000 including crosscountry, monoski, telemark and snow boards. A prior art heel releasemember of a downhill ski binding 1008 is shown mounted to a track 1002.The track 1002 moves backward B in release mode and locks forward F inthe ski mode. The track 1002 has two longitudinal platforms 1007, 1006which ride in grooves 1004, 1005 respectively. A T shaped rail 100 Holdsthe longitudinal platforms 1007, 1006 down with the top of the T.

The rear of the track 1002 has an anchor 1009 held down with screws1010. An actuating piston 1011 is fastened to the anchor 1009. Anoptional soft washer 1012 prevents the anchor 1009 from hitting theguide 1013 in the release mode. Screws 1014 hold the guide 1013 to thebase plate 1001. The guide 1013 functions to guide the actuating piston1011 in a forward F and backward B motion during operation. A spring1016 pushes from the guide 1013 against the end 1018 of the forwardlocking arm 1019. A washer 1022 may be used to reduce wear. The end 1018has a Y shape, wherein the inside of the Y receives the rear end 1023 ofthe actuating piston 1011. The end 1023 has a hole which receives apivot pin 1017.

The rear end 1021 of the forward locking arm 1019 is received by the Yshaped forward end of the rear locking arm 1025. The rear end of theforward locking arm 1019 has a hole which receives a pivot pin 1020. Therear end 1040 of the rear locking arm 1025 has a hole which receivespivot pin 1029 which is fastened to rear anchor 1030. The rear anchor1030 is fastened to the base plate 1001 with screws 1031.

The ski position is shown, wherein the forward end of the rear lockingarm 1025 is held down D by the latch 1026 which has hooked the catch1027 which is mounted in the top 1032 of the rear release arm 1025. Whenthe solenoid 1028 is remotely activated by the skier, the latch 1026 ispulled off the catch 1027, and the front of the rear locking arm 1025pops up U due to the force applied by spring 1016.

Referring next to FIG. 17 the release made is shown. The solenoid 1028has been activated by the skier pushing the release button 2009 whichcaused a transmitter 2008 in the handle of the ski pole 2007 to send asignal 2010 (preferably a radio signal) to the receiver/controller 2006.The receiver/controller 2006 powers the solenoid 1028 to pull the bottom2003 of the latch 1026 forward F. The latch 1026 pivots at pin 2001. Thelatch base 2000 supports the pin 2001. When the power is removed fromthe solenoid 1028, the spring 2004 returns the bottom 2003 backward B,thereby getting the latch 1026 in the ready position to engage the catch1027 when the skier steps on the top 1032. The battery pack 2005 powersthe solenoid 1028 and the receiver/controller 2006. The wire 2001carries power to the solenoid 1028.

Referring next to FIG. 18 the ski 4000 is equipped with a prior art stepin binding heel member 1008 and toe member 3001. The ski boat 3000 has alength d₁ for which the binding members 1008, 3001 have been adjusted toaccommodate for proper release.

Referring next to FIG. 19 the track 1002 is shown in a cutaway view. Theemergency background release binding 1000 is in the ski mode.

Referring next to FIG. 20 it can be seen that the emergency backwardrelease binding 1000 raises the boat 3000 a height h₁ above the ski4000. Therefore, a compensating plate 4010 must be installed under thetoe member 3001 to keep the boat 3000 level. An equivalent system (notshown) would install the track 1002 under the toe member 3001, and mountthe compensating plate 4010 under the heel member 1008.

Referring next to FIG. 21 the latch 1026 is seen to have a lockingdétente 5000 which locks the catch 1027 down in the skiing mode asshown. The return spring 3016 maintains the bottom 2003 of the latch1026 backward as shown. When the solenoid piston 5001 is pulled forwardF by powering the solenoid 1028, the bottom 2003 is pulled forward F,the locking détente is pulled backward B, thereby releasing the catch1027. At this point the forward locking arm 1019 forces the rear lockingarm front end 5005 upward.

Referring next to FIG. 22 the solenoid 1028 has been pulled backward B.The spring 1016 is about to push the forward backing arm 1019 backwardB. This will cause the actuating piston 1011 to move backward B which inturn causes the track 1002 to move backward B. The result of this actionis shown in FIG. 36 where the distance form the rear binding member 1008to the toe binding member 3001 has increased to distance d₂. Thedistance d₂-d₁ is about 1/4 inch. However, design choice can enlargethis distance to about an inch.

Referring next to FIG. 23 a close up view of the latch 1026 in therelease position with the locking détente 5000 backward is shown.

Referring next to FIG. 24 the plate 1002 is pulled backward, and a gap Gnow exists between the boat 3000 and the rear binding member 1008, sothe skier can now fall backward as well as any direction and be releasedfrom the skis.

Referring next to FIG. 25, stop 6000 prevents the over travel of thebottom 2003 of latch 1026 in the B direction. Slots 6010 in stop 6000permit the fine adjustment of the travel of stop position. Screws 6002fasten stop 6000 to base 1001 by passing through slots 6010 and intoappropriately positioned thread holes (not shown) in base 1001. Travelof the bottom 2003 of latch 1026 in the F direction is limited by thestroke of solenoid 1028.

Referring next to FIG. 26 the released mode is shown. The heel of theboot is free. In operation a slight left L or right R force exists, thusthe skier can fall backwards as his boot toe clears the toe bindingmember 3001. Additionally the spring 1016 exerts a forward force on theski 4000 which also pushes the toe binding member 3001 clear of thefront of the boot 3000. FIG. 26 also shows a safety tether 7001 securedaround the boot 3000. The skier can use the clip 7002 to hook the eye7000 which is screwed into the ski 4000. The skier may choose to do thisbefore loading onto a chairlift to prevent an accidental release of hisemergency backward release binding 1000 from dropping the ski 4000 offthe chairlift.

Referring next to FIG. 27 the skier is stepping on the pivot pin 1020,or anywhere on the juncture area between the front lock arm 1019 and therear lock arm 1025, including the top 1032. The skier's weightcompresses the spring 1016 and locks the catch 1027 into the détente5000. Thus, the skier has to add this step down maneuver to the priorart step down maneuver needed to cock the heel member 1008.

Referring next to FIG. 28 the skier has released the emergency backwardrelease binding 1000 and is stepping out of the skis at the lodge, orfor an emergency stop, or for release when upside-down in a tree hole orwhen twisted after a fall, or for a military attack move enabling asolider to sire a weapon while jumping out of his skis.

Referring next to FIG. 29 an alternate embodiment emergency backwardrelease ski binding 1300 using a gas piston assembly 1305 to pull thetrack 1002 backwards B. This embodiment is functionally equivalent tothe FIG. 1, 1000 embodiment. The track 1002 moves backwards B in thesame way for the release mode, which is shown.

This figure also shows the alternate embodiment rails 1322, 1323 whichscrew directly into the ski 4000. No base plate 1001 is needed. Thisrail embodiment could be used in the FIG. 1, 1000 members that mountedto the base plate 1001 would mount instead to the ski 4000.

The track 1002 has a rear anchor 1301 with a pivot pin 1308 pivotallysupporting the forward back arm 1302. The pivot pin 1309 pivotallysupports the rear lock arm 1303 with the forward lock arm 1302. Ananchor 1301 has a pivot pin 1308 to support the forward end of the frontlock arm 1302. An anchor 1304 has a pivot pin 1310 supporting the rearof the rear lock arm 1303. The front of the rear lock arm 1303 has ahousing 1330 to support the pivot pin 1309 as well as to support the gaschamber 1306 via the pivot pin 1331. The forward end of the piston 1307attached to the forward end of the forward back arm 1302 with a pivotpin 1332. The piston 1307 extends form the gas chamber 1306 due to gaspressure, when changing form the ski position to the release positionthe latch 1313 has been released front the housing 1330 which has acatch 1311 for the détente 1313. The solenoid 1315 has an actuator 1317which pulls the détente 1313 from the catch 1311 when the solenoid 1315is powered by the receiver/controller (as shown in FIG. 28). A base 1314pivotally supports the latch 1313 via pivot pin 1316. The adjustmentbolt 1335 prevents an over-depression of the rear lock arm 1303 when theskier steps on the housing 1330 depressing it downward d₂ to cock thepiston assembly 1305 into the ski mode as shown in FIG. 40 the skier hasstepped into the housing 1330, thereby compressing air in the gaschamber 1306, that compressed air 1307 out of the chamber 1306 when thelatch 1312 is released via the solenoid 1315. The adjustment bolt 1335is in contact with the ski 4000. The heel binding member 1008 is readyto accept a ski boat.

Referring next to FIG. 31, receiver 2006 activates motor 8001. Mountedon the rotating shaft 8002 of motor 8001 in a pinion gear 8003 thatrotates in unison with shaft 8002. The rotation of pinion gear 8003engages the teeth 8004 of rack 8005 that is free to slide longitude indirections B and F as pinion gear 8003 rotates CW and CCW respectively.The F and B movement of rack 8005 is transferred to the bottom of latch2003 via ridged wire 8006.

Equivalents to all the above described inventions include allcombinations of all embodiments. The rails 1322, 1323 can be used withthe spring 1316 embodiment shown in FIG. 2. the piston assembly 1305embodiment of FIG. 40 can be used with the base plate 1001 embodiment ofFIG. 2. All embodiments could be mounted to the toe binding memberinstead of the heel binding member. Pivot pins are equivalent to anypivot joint. A solenoid is equivalent to any linear actuator such as alinear motor, or rack and pinion.

Although the present invention has been described with reference topreferred embodiments, numerous modifications and variations can be madeand still the result will come within the scope of the invention. Nolimitation with respect to the specific embodiments disclosed herein isintended or should be inferred.

Before explaining the disclosed embodiment of the present invention indetail, it is to be understood that the invention is not limited in itsapplication to the details of the particular arrangement shown, sincethe invention is capable of other embodiments. Also, the terminologyused herein is for the purpose of description and not of limitation.

1. A ski binding release system comprising: a toe and a heel piecedesigned to have a mounting distance therebetween to secure a ski boot;an extension mechanism to release the ski boot via remote control byenlarging the mounting distance on demand from a remote signal; whereinan automatic release of the forward release binding system maintains aconstant mounting distance between the toe and the heel pieces; whereinthe extension mechanism further comprises a moveable track upon whichthe heel piece is connected; wherein the extension mechanism furthercomprises a spring loaded piston having a ski position with the springcompressed, a release position with the spring released, said pistonhaving a locking groove, a locking pin removably engagable in thelocking groove, and a receiver to receive the remote signal and power anelectronic device to disengage the locking pin, thereby releasing theski boot by causing the heel piece to move to a larger distance from thetoe piece, said toe piece being fastened into a ski; and a cocking meansfunctioning to enable a skier to cock the spring loaded piston to theski position, load the piston's spring, and latch the locking pin intothe locking groove.
 2. A remote controlled ski binding release systemcomprising: a sliding plate adapted to fasten to a ski; said slidingplate adapted to receive a ski binding member and slide away from anopposing ski binding member in a remote control release mode; a lock armassembly having a movable end connected to the sliding plate; said lockarm assembly having a pair of pivotally connected arms which have acentral pivot joint which moves upward in a remote control release mode,wherein a lock arm assembly length is shortened in the remote controlrelease mode and lengthened in a ski mode; a stored energy assemblymeans functioning to move the lock arm assembly to the remote controlrelease mode from the ski mode, and functioning to be cocked by a pushon the central pivot joint thereby adding energy to the stored energyassembly means; a receiver/controller adapted to mount onto the ski andreceive a remote signal to release the stored energy from the storedenergy assembly means, thereby moving the lock arm assembly from the skimode to the remote control release mode; and wherein an automaticrelease of the ski binding release system maintains a constant mountingdistance between the toe and the heel binding members.
 3. The releasesystem of claim 2, wherein the stored energy assembly means furthercomprises a spring and a solenoid actuated release latch.
 4. The releasesystem of claim 2, wherein the stored energy assembly means furthercomprises a gas piston assembly and a solenoid actuated release latch.5. The release system of claim 2 further comprising a remote transmittercontrollable by a skier to provide the remote signal.
 6. The releasesystem of claim 5, wherein the remote transmitter is located in a skipole having an actuator switch.
 7. The release system of claim 2,wherein the track is adapted to fasten to the ski by means of a baseplate.
 8. The release system of claim 2, wherein the ski binding memberis a heel binding, and the opposing ski binding member is a toe binding.9. A release system comprising: a sliding plate slidably affixable to aski and suited to receive at least one member of a heel and toe bindingset; said sliding plate having a ski mode wherein it is slid into aposition to maintain the heel and toe binding set in an originalpreselected boot length position between the heel and toe members; andhaving a remote control release mode wherein it is slid into a positionwhich puts the heel and toe set in a longer boot length position thanthe original preselected boot length position; a lock arm assemblyhaving a movable end attached to the sliding plate; said lock armassembly having a cockable actuator, wherein when cocked it forces thesliding plate to the ski mode; and said cockable actuator furthercomprising a step on cocking point, thereby allowing a skier to step onthe cockable actuator and cock the cockable actuator into the ski modefrom the remote control release mode, and having a receiver/controllerto enable a remote release of the cockable actuator; a transmitter meansfunctioning to enable a skier to signal the receiver/controller to movethe sliding plate to the remote control release mode, and wherein anautomatic release of the ski binding release system maintains a constantmounting distance between the heel and toe binding set.
 10. (canceled)11. (canceled)
 12. A ski binding release system comprising: a track forreceiving a moveable ski binding member; said ski binding member being amember of a forward release binding system having a toe releasemechanism, and a heel release mechanism; wherein an automatic release ofthe forward release binding system maintains a constant mountingdistance between the toe release mechanism and the heel releasemechanism; a remote transmitter; a receiver and an actuator mountable ona ski; and wherein a manual activation of the remote transmitteractivates the receiver which in turn activates the actuator to move themoveable ski binding member to a remote control release position,thereby increasing the constant mounting distance between the toerelease mechanism and the heel release mechanism.
 13. (canceled) 14.(canceled)
 15. (canceled)
 16. (canceled)
 17. (canceled)
 18. (canceled)19. (canceled)
 20. (canceled)
 21. (canceled)
 22. (canceled) 23.(canceled)
 24. The release system of claim 5, wherein thereceiver/controller further comprises an electronically activated noisemaker.
 25. The release system of claim 24, wherein the noise maker is achirper chip.
 26. The release system of claim 2, wherein the storedenergy assembly means further comprises a rack and pinion assembly. 27.(canceled)
 28. (canceled)